Colter



' C. R. HARTMAN.`

Colter.

No. 238,115. Patented Feb. 22,1881.

V "Jlnkdl Y I INVENTQR Mt I i B z/ .Attorneys l Y.

N. PETERS, PNQTO-LIIHOGRAFHEE WASHINGTON, DV C.

UNITED STATES PATENT OFFICE CHARLES R. HARTMAN, OF VINCENNES, INDIANA.

COLTER.

SPECIFICATION forming part of Letters Patent No. 238,115, dated February 22, 1881.

Application tiled December 30, 1880. (Model.)

To all whom it may concern:

Be itknown that 1,0. R. HAETMAN, a citizen of the United States, resident at Vincennes, in the county of Knox and State of Indiana, have invented certain new and useful Improvements in Golters and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or gures of reference marked thereon, which form a part of this specification, in which- Figure 1 is a side-elevation view. Fig. 2 isY a front view, partly in section, and Figs. 3, 4, 5, 6, and 7 are detail views.

This invention relates to colters for plows, more especially wheel-colters.

The invention consists in the construction hereinafter described.

In the drawings hereto annexed, A is the beam. Bis thecolter-standard. Eis one cheek thereof, and D the other. Cheek E consists of a vertical arm, C, and a horizontal one, F. Arm (l and cheek D have iianges c d3, ribs c d', and are slotted at c2 d2 through said ribs and anged portions.

G are clamps which t the shape of arm C and cheek D, and have holes g. Arm C and cheek Dare run through the openings .f in said clamps, the arms g g being on the sides of the arm C and cheek D. These clamps are placed one above and one below beam A, on each side, with bar a' bearing against said beam, and are held tight by rods H passing through holes g and running across beam A. The lower end of cheek Dhasaslot,d, through which passes the reduced end f of horizontal arm F. `.This arm is straight when the landside is the same, and inclined when the landside is also. The arm F has a slot, b, running through it.

I is a swivel-post, whose upper arm, K, is at 'right angles to its journal L. This arm K has a reduced flat portion, k, passing through slot b, and the post is held at any point by a bolt, M, and washer m, the head of bolt M resting between and being kept from turning by the cheek-pieces K' K', and held tight by nut m.

N is the colter-yoke,phaving arms PP, at

\ whose converging ends is the eye n', through which passes journal L, being held on said journal against its shoulder l by a washer, l', and nut l2, or other equivalent device. p p are lugs on arms PP bearing on arm F. R is the colter.

S is the blade, consisting of a disk having a knife-edge and an irregular hole, s, at the center.` Passed through this hole, and having a middle, r, to correspond with is shape, is a hub, T, whose ends t t are screw threaded. The preferred shape to hole s is a circle having notches at the opposite ends of a diameter; but any form other than a true circle will do. The screw-threaded ends t t areA smaller than the middle, 1', of hub T, and over these are screwed the caps V, threaded tocorrespond, and having recesses 'u to receive such middle r, said caps being shorter than ends t, and whenscrewed home these ends project.

W are caps having lugs y which are inserted in apertures z in the lower ends of arms P I. The inner ends of said caps are recessed at w, of a shape to t the projecting ends of hub 'I t, and form bearings for said ends.

The colter, as described, isheld in the fork by a bolt, X, its ends t tresting in caps W W, as described.

By the construction shown and described the colter can be readily raised or lowered for different depths, andthe standard can be separated for different width of beams. The colter comes close to the standard, and its yoke, bearing against the under side of the horizontal arm, takes much of the strain from the swivelpost, and the lugs allow plenty of play to the colter, while preventing its going too far.

1. The cheek-piece E, having slots c2 and b, and reduced end f", cheek piece D, having slots d2 and d, in combination with clamps Gr and rods H, substantially as and for the purpose set forth.

2. The slotted arm F b, secured to the cheekpieces E D, in combination with a laterallyadjustable colter, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.I

CHARLES R. HARTMAN.

Witnesses:

CHARLES HEIDENEEIGH, Riom). J. GEEENHOW. 

